Run updates.
yum -y update
Install vsftpd.
yum -y update
Edit follow configs.
vim /etc/vsftpd/vsftpd.conf
anonymous_enable=NO
local_enable=YES
write_enable=YES
chroot_local_user=YES
Restart vsftpd.
systemctl restart vsftpd
Set vsftpd service to start at boot.
systemctl enable vsftpd
Allow the default FTP port (21), through the firewall.
firewall-cmd --permanent --add-port=21/tcp
Reload the firewall.
firewall-cmd --reload